Prince Andrew's private secretary, Major Alastair Watson, has resigned to
pursue a career in the private sector.

Until the Duke of York stepped down as Britain’s trade envoy last year after a series of controversies, his private secretary, Major Alastair Watson, was given an invaluable introduction to some of the world’s biggest companies. Now, he can use that experience to seek his fortune.

Mandrake can disclose that the former Black Watch officer, 59, has handed in his resignation after nine years as Prince Andrew’s right-hand man. “We can confirm Alastair Watson will be leaving the post to continue his career in the private sector,” a Buckingham Palace spokesman tells me.

In December, Major Watson’s son, Harry, hit the headlines when it was reported that he had been taken on by the lobbyists Bell Pottinger.

Executives were filmed boasting about the firm’s links to the Royal family. David Wilson, the chairman, suggested that Bell Pottinger might be able to help organise an overseas royal tour and even mentioned claims that the Duke would “follow where the chequebook is”.

Major Watson will have to leave the grace-and-favour property in the grounds of Buckingham Palace that he shares with his wife, Selina. “Alastair served the Duke and Royal household well,” says a courtier. “He goes with all our good wishes.”